US20110110098A1 - Led unit - Google Patents

Led unit Download PDF

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Publication number
US20110110098A1
US20110110098A1 US12/687,879 US68787910A US2011110098A1 US 20110110098 A1 US20110110098 A1 US 20110110098A1 US 68787910 A US68787910 A US 68787910A US 2011110098 A1 US2011110098 A1 US 2011110098A1
Authority
US
United States
Prior art keywords
light
face
led
emergent
led unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US12/687,879
Other versions
US8231248B2 (en
Inventor
Ren-Tao Fu
Chin-Chung Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fu Zhun Precision Industry (Shenzhen) Co Ltd
Foxconn Technology Co Ltd
Original Assignee
Fu Zhun Precision Industry (Shenzhen) Co Ltd
Foxconn Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN2009103094353A priority Critical patent/CN102052629B/en
Priority to CN200910309435 priority
Priority to CN200910309435.3 priority
Application filed by Fu Zhun Precision Industry (Shenzhen) Co Ltd, Foxconn Technology Co Ltd filed Critical Fu Zhun Precision Industry (Shenzhen) Co Ltd
Assigned to FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD., FOXCONN TECHNOLOGY CO., LTD. reassignment FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, CHIN-CHUNG, FU, REN-TAO
Publication of US20110110098A1 publication Critical patent/US20110110098A1/en
Publication of US8231248B2 publication Critical patent/US8231248B2/en
Application granted granted Critical
Application status is Expired - Fee Related legal-status Critical
Adjusted expiration legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/04Refractors for light sources of lens shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/0091Reflectors for light sources using total internal reflection
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69Details of refractors forming part of the light source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L33/00Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58Optical field-shaping elements

Abstract

An LED unit includes an LED and a lens receiving the LED. The lens includes a first light-incident face confronting the LED to refract the light emitted from the LED with a small angle into the lens, a second light-incident face surrounding the LED to refract the light emitted from the LED with a large angle into the lens, a light-reflecting face to reflect the light from the second light-incident face towards a top of the LED, a first light-emergent face to refract the light from the first light-incident face out of the lens, and a second light-emergent face to refract the light from the light-reflecting face out of the lens.

Description

    BACKGROUND
  • 1. Technical Field
  • The present disclosure relates to a light emitting diode (LED) unit and, more particularly, to an LED unit having a lens which can produce an effectively converged light beam.
  • 2. Description of Related Art
  • LEDs, available since the early 1960's and because of their high light-emitting efficiency, have been increasingly used in a variety of occasions, such as residential, traffic, commercial, and industrial occasions. Conventionally, light directly output from the LED does not have a desirable pattern; therefore, a light-adjusting element, such as a lens, is used with the LED to modulate the light pattern thereof.
  • However, a typical lens generally has a limited light-converging capability; that is, the light passing through the lens cannot be effectively converged to have a small light-emergent angle. Thus, the light pattern output from the lens may have a yellow annulus or shining annulus appearing at a periphery thereof, adversely affecting illumination effect of the lens.
  • What is needed, therefore, is an LED unit which can overcome the limitations described above.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • Many aspects of the present disclosure can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
  • FIG. 1 is an isometric view of a lens of an LED unit of the disclosure.
  • FIG. 2 is an inverted view of the lens of FIG. 1.
  • FIG. 3 shows a cross-section of the LED unit with the lens of FIG. 1.
  • DETAILED DESCRIPTION OF THE EMBODIMENTS
  • Referring to FIGS. 1 and 3, an LED unit of the present disclosure is illustrated. The LED unit includes an LED module 10 and a lens 30 mounted on the LED module 10. The LED module 10 includes a printed circuit board 12 and an LED 20 mounted on the printed circuit board 12. The printed circuit board 12 may be a MCPCB (Metal Core Printed Circuit Board), a CPCB (Ceramic Printed Circuit Board) or other type PCBs which have good heat dissipation capability. The LED 20 includes a heat-conducting base 22, an LED die 24 mounted on a top of the base 22, and an encapsulant 26 covering the LED die 24 and fixed on the top of the base 22. The base 22 of the LED 20 is soldered on the printed circuit board 12 to conduct heat generated by the LED die 24 to the printed circuit board 12. In addition, the LED die 24 is electrically connected with the printed circuit board 12 via the base 22. The LED die 24 may be an InGaN chip, an InGaAs chip, a GaP chip or other suitable chips which could generate visible light with a desirable color. The encapsulant 26 is made by epoxy, silicon, glass or other transparent materials which have good light-permeable and water-proof capabilities. Phosphor may be doped within the encapsulant 26 to adjust the color of the light emitted from the LED die 24. The encapsulant 26 is shaped like a dome so as to collimate the light from the LED die 24 into a converged beam. The LED 20 has an optical axis I, around which the light emitted from the encapsulant 26 is symmetrical in a surrounding space.
  • Also referring to FIG. 2, the lens 30 is made from transparent materials such as PC (polycarbonate) or PMMA (polymethyl methacrylate). The lens 30 includes a substrate 32, an optical member 34 extending upwardly from the substrate 32 and a flange 36 extending outwardly from a circumference of the optical member 34. The substrate 32 has a circular configuration with a rectangular window 320 defined in a bottom face thereof. The window 320 has an area similar to that of the base 22 of the LED 20 for receiving the base 22 of the LED 20 therein. A cavity 340 is defined in the interior of the lens 30. The cavity 340 is located above a center of and communicates with the window 320 to further receive the encapsulant 26 of the LED 20 therein. The cavity 340 has a shape of a truncated cone. A diameter of the cavity 340 gradually decreases from a bottom towards a top of the lens 30. An inner face of the lens 30 facing the encapsulant 26 of the LED 20 functions as a first light-incident face 301 of the lens 30 to receive the light emitted from the LED 20 with a small light-emergent angle (such the light b shown in FIG. 3). Another inner surface of the lens 30 surrounding the encapsulant 26 of the LED 20 functions as a second light-incident face 302 of the lens 30 to receive the light emitted from the LED 20 with a large light-emergent angle (such as the light a shown in FIG. 3). The first light-incident face 301 is planar, and the second light-incident face 302 is curved and slightly protruding inwardly towards the LED 20. The second light-incident face 302 has a curvature gradually decreasing from the bottom towards the top of the lens 30, ranging between 0.05 mm−1 and 0.08 mm−1. The first light-incident face 301 and the second light-incident face 302 cooperatively form a light-incident face 300 to refract all of the light of the LED 20 into the lens 30.
  • The optical member 34 has an upwardly-expanding bowl shape. An outer circumference of the optical member 34 functions as a light-reflecting face 303 of the lens 30 to totally reflect the light transferred from the second light-incident face 302 towards the top of the lens 30. Alternatively, the light-reflecting face 303 can be further coated with a reflective layer (such as aluminum layer or silver layer) for promoting light reflection. The flange 36 is located on the light-reflecting face 303 and adjacent to a top of the optical member 34. The flange 36 is for being pressed by a clip against the printed circuit board 12 to thereby secure the lens 30 on the printed circuit board 12. The light-reflecting face 303 is divided by the flange 36 into a first light-reflecting face 304 and a second light-reflecting face 305. The first light-reflecting face 304 is conical and gradually expands from the bottom towards the top of the lens 30. The first light-reflecting face 304 has a curvature firstly increasing and then decreasing from the bottom towards the top of the lens 30, ranging between 0.02 mm−1 and 0.06 mm−1. The second light-reflecting face 305 is vertical and has a zero curvature.
  • A top face of the optical member 34 is concaved downwardly to form a conical second light-emergent face 308. The second light-emergent face 308 directly connects with the second light-reflecting face 305. A protrusion (not labeled) is protruded upwardly from a central area of the top face of the optical member 34. The protrusion has a flat top face and a curved circumferential face continuous from the flat top face. The flat top face and the curved circumferential face of the protrusion cooperatively form a first light-emergent face 307 of the lens 30. The first light-emergent face 307 mostly takes charge for the light transmitted from the first light-incident face 301, the second light-emergent face 308 mostly takes charge for the light totally reflected by the light-reflecting face 303, to thereby refract nearly all of the light from the LED 20 out of the lens 30 within a small light-emergent angle. The first light-emergent face 307 has a curvature ranging between 0 and 0.9 mm−1, and the second light-emergent face 308 has a curvature ranging between 0 and 0.12 mm−1. The first-emergent face 307 and the second light-emergent face 308 cooperatively form a light-emergent face 306 to refract the light within the lens 30 towards a place above the lens 30.
  • Being adjusted by the first light-incident face 301, the second light-incident face 302, the first light-reflecting face 304, the second light-reflecting face 305, the first light-emergent face 307 and the second light-emergent face 308, the light emitted from the LED 20 could be effectively converged within a small angle, thereby preventing a periphery of a light pattern output by the LED 20 via the lens 30 from being yellow or shining.
  • It is believed that the present disclosure and its advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the present disclosure or sacrificing all of its material advantages, the examples hereinbefore described merely being preferred or exemplary embodiments.

Claims (15)

1. An LED (light emitting diode) unit, comprising:
an LED; and
a lens mounted on the LED, the lens comprising a light-incident face adjacent to the LED, a light-emergent face remote from the LED, and a light-reflecting face between the light-incident face and the light-emergent face, wherein light emitted from the LED with a small angle is refracted by the light-incident face and the light-emergent face out of the LED unit, light emitted from the LED with a large angle is sequentially refracted by the light-incident face, reflected by the light-reflecting face and refracted by the light-emergent face out of the LED unit; and
wherein the light-reflecting face comprises a first light-reflecting face and a second light-reflecting face having a curvature different from that of the first light-reflecting face.
2. The LED unit as claimed in claim 1, wherein the first light-reflecting face is conical and gradually expands upwardly along a bottom-to-top direction of the lens.
3. The LED unit as claimed in claim 1, wherein the curvature of the first light-reflecting face ranges between 0.02 mm−1 and 0.06 mm−1.
4. The LED unit as claimed in claim 1, wherein the curvature of the second light-reflecting face is 0.
5. The LED unit as claimed in claim 1, wherein the first light-reflecting face and the second light-reflecting face are discontinuous from each other.
6. The LED unit as claimed in claim 5, wherein a flange is protruded outwardly between the first light-reflecting face and the second light-reflecting face, the flange being located adjacent to a top of the lens.
7. The LED unit as claimed in claim 1, wherein the light-emergent face comprises a first light-emergent face and a second light-emergent face surrounding the first light-emergent face, the second light-emergent face directly connecting the second light-reflecting face.
8. The LED unit as claimed in claim 7, wherein the first light-emergent face comprises a flat top face and a curved circumferential face surrounding the flat top face.
9. The LED unit as claimed in claim 7, wherein the second light-emergent face is concaved downwardly to have a conical shape.
10. The LED unit as claimed in claim 7, wherein the second light-emergent face has a curvature ranging between 0 and 0.12 mm−1, and the first light-emergent face has a curvature ranging between 0 and 0.09 mm−1.
11. The LED unit as claimed in claim 1, wherein the light-incident face comprises a first light-incident face facing the LED, and a second light-incident face surrounding the LED.
12. The LED unit as claimed in claim 11, wherein the first light-incident face is flat.
13. The LED unit as claimed in claim 11, wherein the second light-incident face is protruded towards the LED.
14. The LED unit as claimed in claim 13, wherein the second light-incident face has a curvature ranging between 0.05 mm−1 and 0.08 mm−1.
15. The LED unit as claimed in claim 1, wherein the lens has a window defined in a bottom thereof and a cavity defined in an interior thereof, the window communicating with the cavity, the window and the cavity together receiving the LED therein, the first and second light-incident faces being formed by the lens defining the cavity, the cavity having a shape of a truncated cone.
US12/687,879 2009-11-09 2010-01-15 LED unit Expired - Fee Related US8231248B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2009103094353A CN102052629B (en) 2009-11-09 2009-11-09 Light-emitting component
CN200910309435 2009-11-09
CN200910309435.3 2009-11-09

Publications (2)

Publication Number Publication Date
US20110110098A1 true US20110110098A1 (en) 2011-05-12
US8231248B2 US8231248B2 (en) 2012-07-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
US12/687,879 Expired - Fee Related US8231248B2 (en) 2009-11-09 2010-01-15 LED unit

Country Status (2)

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US (1) US8231248B2 (en)
CN (1) CN102052629B (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110140147A1 (en) * 2009-12-16 2011-06-16 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led unit
US20120319554A1 (en) * 2010-03-03 2012-12-20 Philips Lumileds Lighting Company Llc Electric lamp having reflector for transferring heat from light source
WO2013169736A1 (en) 2012-05-07 2013-11-14 Cree, Inc. Lens for preferential-side distribution
US9255686B2 (en) 2009-05-29 2016-02-09 Cree, Inc. Multi-lens LED-array optic system
USD771172S1 (en) * 2015-08-28 2016-11-08 Chun Kuang Optics Corp. Lens
US9523479B2 (en) 2014-01-03 2016-12-20 Cree, Inc. LED lens
US9541258B2 (en) 2012-02-29 2017-01-10 Cree, Inc. Lens for wide lateral-angle distribution
US9541257B2 (en) 2012-02-29 2017-01-10 Cree, Inc. Lens for primarily-elongate light distribution
USD846016S1 (en) * 2017-08-08 2019-04-16 Panasonic Intellectual Property Management Co., Ltd. Prism for 360-degree panoramic image projection
US10400984B2 (en) 2013-03-15 2019-09-03 Cree, Inc. LED light fixture and unitary optic member therefor
US10408429B2 (en) 2012-02-29 2019-09-10 Ideal Industries Lighting Llc Lens for preferential-side distribution
US10422503B2 (en) 2009-10-30 2019-09-24 Ideal Industries Lighting Llc One-piece multi-lens optical member and method of manufacture
USD863393S1 (en) * 2017-08-08 2019-10-15 Panasonic Intellectual Property Management Co., Ltd. Prism for 360-degree panoramic image projection

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2516920B1 (en) * 2009-12-21 2019-11-27 Harman Professional Denmark ApS Light collector with extended center lens
KR101047439B1 (en) * 2010-04-09 2011-07-08 엘지이노텍 주식회사 Lens and lighting unit comprising lens
KR101467638B1 (en) * 2012-12-13 2014-12-04 엘지이노텍 주식회사 Diffusion lens, led array bar having the same, and back light assembly having thereof
CN204785815U (en) * 2015-07-16 2015-11-18 泉州钰乘礼品有限公司 Novel luminous basin
US10190736B1 (en) * 2016-04-22 2019-01-29 Cooper Technologies Company Apparatus for providing off-axis illumination

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254962A (en) * 1937-09-22 1941-09-02 George M Cressaty Unitary lens system
US20010007527A1 (en) * 2000-01-07 2001-07-12 U.S. Philips Corporation Luminaire
US6547423B2 (en) * 2000-12-22 2003-04-15 Koninklijke Phillips Electronics N.V. LED collimation optics with improved performance and reduced size
US20040264199A1 (en) * 2003-06-30 2004-12-30 Kuo-Fen Shu LED spotlight (type III)
US7222995B1 (en) * 2006-01-19 2007-05-29 Bayco Products, Ltd. Unitary reflector and lens combination for a light emitting device
US7347603B2 (en) * 2002-11-05 2008-03-25 Matsushita Electric Industrial Co., Ltd. Light-emitting diode
US7473013B2 (en) * 2003-12-10 2009-01-06 Okaya Electric Industries Co., Ltd. Indicator lamp having a converging lens
US7934858B2 (en) * 2008-10-31 2011-05-03 Enplas Corporation Lighting lens and lighting device equipped with the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6724543B1 (en) * 2002-10-23 2004-04-20 Visteon Global Technologies, Inc. Light collection assembly having mixed conic shapes for use with various light emitting sources
US7401948B2 (en) * 2005-10-17 2008-07-22 Visteon Global Technologies, Inc. Near field lens having reduced size
US7580192B1 (en) * 2008-12-23 2009-08-25 Smart Champ Enterprise Limited Collimation lens system for LED

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254962A (en) * 1937-09-22 1941-09-02 George M Cressaty Unitary lens system
US20010007527A1 (en) * 2000-01-07 2001-07-12 U.S. Philips Corporation Luminaire
US6547423B2 (en) * 2000-12-22 2003-04-15 Koninklijke Phillips Electronics N.V. LED collimation optics with improved performance and reduced size
US7347603B2 (en) * 2002-11-05 2008-03-25 Matsushita Electric Industrial Co., Ltd. Light-emitting diode
US20040264199A1 (en) * 2003-06-30 2004-12-30 Kuo-Fen Shu LED spotlight (type III)
US7473013B2 (en) * 2003-12-10 2009-01-06 Okaya Electric Industries Co., Ltd. Indicator lamp having a converging lens
US7222995B1 (en) * 2006-01-19 2007-05-29 Bayco Products, Ltd. Unitary reflector and lens combination for a light emitting device
US7934858B2 (en) * 2008-10-31 2011-05-03 Enplas Corporation Lighting lens and lighting device equipped with the same

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9255686B2 (en) 2009-05-29 2016-02-09 Cree, Inc. Multi-lens LED-array optic system
US9689552B2 (en) 2009-05-29 2017-06-27 Cree, Inc. Multi-lens LED-array optic system
US10422503B2 (en) 2009-10-30 2019-09-24 Ideal Industries Lighting Llc One-piece multi-lens optical member and method of manufacture
US8120048B2 (en) * 2009-12-16 2012-02-21 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. LED unit
US20110140147A1 (en) * 2009-12-16 2011-06-16 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led unit
US20120319554A1 (en) * 2010-03-03 2012-12-20 Philips Lumileds Lighting Company Llc Electric lamp having reflector for transferring heat from light source
US8729781B2 (en) * 2010-03-03 2014-05-20 Koninklijke Philips N.V. Electric lamp having reflector for transferring heat from light source
US9383081B2 (en) 2010-03-03 2016-07-05 Koninklijke Philips N.V. Electric lamp having reflector for transferring heat from light source
US10408429B2 (en) 2012-02-29 2019-09-10 Ideal Industries Lighting Llc Lens for preferential-side distribution
US9541257B2 (en) 2012-02-29 2017-01-10 Cree, Inc. Lens for primarily-elongate light distribution
US9541258B2 (en) 2012-02-29 2017-01-10 Cree, Inc. Lens for wide lateral-angle distribution
EP2847512A4 (en) * 2012-05-07 2015-12-09 Cree Inc Lens for preferential-side distribution
WO2013169736A1 (en) 2012-05-07 2013-11-14 Cree, Inc. Lens for preferential-side distribution
US10400984B2 (en) 2013-03-15 2019-09-03 Cree, Inc. LED light fixture and unitary optic member therefor
US9523479B2 (en) 2014-01-03 2016-12-20 Cree, Inc. LED lens
USD771172S1 (en) * 2015-08-28 2016-11-08 Chun Kuang Optics Corp. Lens
USD846016S1 (en) * 2017-08-08 2019-04-16 Panasonic Intellectual Property Management Co., Ltd. Prism for 360-degree panoramic image projection
USD863393S1 (en) * 2017-08-08 2019-10-15 Panasonic Intellectual Property Management Co., Ltd. Prism for 360-degree panoramic image projection

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Publication number Publication date
CN102052629A (en) 2011-05-11
US8231248B2 (en) 2012-07-31
CN102052629B (en) 2013-12-11

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